AlturnaMATS are made of 100% recycled high-density polyethylene. AlturnaMATS are 1/2” thick, will bend to conform to the ground but will not break, crack or splinter like wood or fiberglass. These rugged mats have been tested in extremely hot and cold weather conditions, have a bold cleat pattern for traction, have a load rating of 60 tons and have a 6-year warranty. For more information call 814-827-8884 or visit www.alturnamats.com. AlturnaMATS, Inc.